Socket Head Cap Screw Head Type Button System of Measurement Metric Drive Type Socket Drive Size 2.5 mm Material Stainless Steel Material Grade/Class 18-8 Finish Plain Thread Size M4-0.7 Minimum Thread Length 20 mm Fastener Length 50 mm Head Height 2.2 mm Head Diameter 7.6 mm Pack Size Small Pack Thread Style Fully Threaded Special Features Not Applicable Countersink Angle Not Applicable Dimensional Standards ISO 7380 Flange Diameter Not Applicable